Examlex
Dr.Stiles is studying the behaviour of ducks in the lab and in the wild.Most likely,Dr.Stiles is in the field of __________.
Natural Groups
Groups that exist in the real world as they are, without manipulation or creation for research purposes, such as ethnic or gender groups.
Two Groups
A research design involving comparison between two separate groups of participants to determine the effect of a variable.
Experiment
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
History Effect
refers to the impact that events occurring between the first and second measurements in an experiment have on the subjects' performance, independent of the experimental manipulation.
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